Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of Psy Shell.
Chris@0:  *
Chris@0:  * (c) 2012-2017 Justin Hileman
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Psy\TabCompletion\Matcher;
Chris@0: 
Chris@0: use InvalidArgumentException;
Chris@0: 
Chris@0: /**
Chris@0:  * An object method tab completion Matcher.
Chris@0:  *
Chris@0:  * This matcher provides completion for methods of objects in the current
Chris@0:  * Context.
Chris@0:  *
Chris@0:  * @author Marc Garcia <markcial@gmail.com>
Chris@0:  */
Chris@0: class ObjectMethodsMatcher extends AbstractContextAwareMatcher
Chris@0: {
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function getMatches(array $tokens, array $info = array())
Chris@0:     {
Chris@0:         $input = $this->getInput($tokens);
Chris@0: 
Chris@0:         $firstToken = array_pop($tokens);
Chris@0:         if (self::tokenIs($firstToken, self::T_STRING)) {
Chris@0:             // second token is the object operator
Chris@0:             array_pop($tokens);
Chris@0:         }
Chris@0:         $objectToken = array_pop($tokens);
Chris@0:         if (!is_array($objectToken)) {
Chris@0:             return array();
Chris@0:         }
Chris@0:         $objectName = str_replace('$', '', $objectToken[1]);
Chris@0: 
Chris@0:         try {
Chris@0:             $object = $this->getVariable($objectName);
Chris@0:         } catch (InvalidArgumentException $e) {
Chris@0:             return array();
Chris@0:         }
Chris@0: 
Chris@0:         if (!is_object($object)) {
Chris@0:             return array();
Chris@0:         }
Chris@0: 
Chris@0:         return array_filter(
Chris@0:             get_class_methods($object),
Chris@0:             function ($var) use ($input) {
Chris@0:                 return AbstractMatcher::startsWith($input, $var) &&
Chris@0:                     // also check that we do not suggest invoking a super method(__construct, __wakeup, …)
Chris@0:                     !AbstractMatcher::startsWith('__', $var);
Chris@0:             }
Chris@0:         );
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function hasMatched(array $tokens)
Chris@0:     {
Chris@12:         $token     = array_pop($tokens);
Chris@0:         $prevToken = array_pop($tokens);
Chris@0: 
Chris@0:         switch (true) {
Chris@0:             case self::tokenIs($token, self::T_OBJECT_OPERATOR):
Chris@0:             case self::tokenIs($prevToken, self::T_OBJECT_OPERATOR):
Chris@0:                 return true;
Chris@0:         }
Chris@0: 
Chris@0:         return false;
Chris@0:     }
Chris@0: }